Stebeotyping machine



A. L. CASE.

STEREOTYPING MACHINE.

APPLIoATIoN FILED 11.14.1907.

-Patented Nov. 3, 1908.

2 SHEETSvSHEET 1.

A. L. CASE.

STEREOTYPING MACHINE.

APPLIGATION FILED 11.13.14, 1907.

902,941. V Patented Nov.3,19os.

2 SHEETS-SHEET 2.

.ill-t'll-llll'.. l.. HABE, OF PLAINFI'FILD, NEW JERSEY.

STEREOTYMNGMACHINE.

no. eoaofli.

Specification of Letters Patent.

Patented Nov. 3, A1908.

Applicativi: filed March 14, 1907. Serial No. 382,343.

To all, whom .it may concern:

Be it li'nown that l', tn'rinm L. (fl/isn, a citizen of. the United States of America. and a resident olf Plainfield, Union county, lNew Jersey, have invented certain new and useful Improvements in Stereoty il'1glv1aehines, of which the following is a specilication.`

The present invent-.ion relates to stereotype plate casting. maehines.

'In the prior art of stereotyping machines it has been customary to have aoasting chamber larger than the size of the plate to he.

made,.therehy producing a plate having considet'able overcast. This plate has to be; trimmed and the sinrplus-nmtnll removed'. f The chief object of the present invention resides in casting a stereotype printing plate Without overcast..

The invention' embraces a stereotype east.-

ing niold: composed o-a plurality olil meinA hers orming an inclosed casting chamber of substantially the contour and dimensions'of the plate t he oast, a valve for introducing molten metal into the mold, Iwhich, when closed, forms a part of the Wall of the casting chamber, and a valve adapted to be automatically closed for allowing the air to es- .cape vfrom the said casting chamber, and

which, when closed, forms a partof the wall vofthe Casting chamber.

The invention may be applied either to a vertical,- inclined or horizontal casting mold,

andthev Words upper end and floWe'r end .depend purely upon which end of the most. v

Othert features of eonstruetion, combinat1on orparts, and arrangement of elements mold happei'is to uppermost or lov-ven will appear as the specification proceeds.

In, the acompanyirig-ilrawingfi theinvention is embodied in a concrete form showing several modifications, but one of' which 1s a preferred form. 'lt' is to he understood, however, that lvariations may' be made 1n the con' struction Without departin from the legiti mate and intended 'scope o the invention.

. In the said draw'in s; Figure 1f is a View' in elevation and part y broken away and in seotion ofa stereotype casting machine embodyin the invention. viewe the valvef for regulatin 'the admisv sion of' metal to the castin eh mber.- Fig.

3 is 'a detail View of one o .the head gages, partly broken away. Fig. 3a is a transverse vertical section, partly broken away, through the center *t the valve 23 shown in Fig. 3,

Fig. 2jis a detail showing the said valve in its closed imstion. Fig. 1l 1s a transverse section of tlio. line lll-41 olE Fig. 5, showing' lheinveniion applied lo a horizontal tasting mold. Fig. is a View looking in the direction of the arrow :i of. lfig. Lland partly broken away and in section. Similar characters ot reference .indicate :orres1iondi-x-1g parts of the different views.

Referring to Figs. 1 to 3? inclusive, '1 indicates a metal n'ielting furnace of any usualor suitable structure and provided with the melting' Apot 2.- Located adjacent to this metal melting furnace is an upright stereo-l type casting mold, indicated'lhy 3.- 'lhe casting mold is composed of two parts, asta: tionary part, here called the drag and indicated by 4, and a movable part, here called the Cope indicated by 5. The stationary/.part

can conveniently be placed with. its back-.- against the metal-melting .furnace and-.is se-. cured thereto by any suitable means, asthe vbolts 6. "The means for moving the. cope to- Ward and away from the-drag may be of any suitable construction.. In the present instance, the cope is'hinged at its lovven end by means of the pivot 7 and may he; pro-A vided with the operatinghandle 8..

The casting -chaml)e1"9.V islinolosed by.' theeope and dra-gif, by the two side-gages 9* and The particular formhere followedfeonsists .of a duct 12 leading iii-0m the pot andere tendingdownwardly. within the 4metal meltthereofvvhere it communicates with a hfori -iug furnace', and outwardly to theexte-li-ior 195 vzontal passage 13 inthe lower en-dzof-thez drag which leads into the casting.. ch: L Inber -;;v

This passage 13 isfsurrounded .by an" space 14 which separates it'from or renders v 110.0 back 15, so tliatthe Water in the latter.Wi-ll",` a..

it free frein contact-With the usual Water not-tend to cool the metal before it enters the casting,r chamber. 'If desired, some aux# iliary heating means, as. the gas be utilized to heat the passage 13.

17', indicates a Valve for'regulating the ad mission. ofthe molten metal into theoasting chambe'. This valve-consists of twoplates 1S of sheet metal, between which -are interposed a body of asbestos. or' the like. It is normally'heldin itsclosed position hy means of thesprmg 19 and is opened by means of jets llmay l.

85 by .the oppositely beveled lower and u.p.peL'- head. gages indicated .respectivelyi by ll0` and 1l. y. 1.

Suitable means of'ooinn-iunication from the pot to the casting chamberare provided.

the lver .and connections 2J. and 22.

``When this 'valve is closed it forms a part of the lWall of thecastng chamber as shown.

Located in the upper head gage is a valve 23 for allowing the lair to escape as the casting chamber is filled. This 'valve is prol vided with'a slot 24 in which plays the screw or s'to v25 carried by the vgage so that the valve y its own Weight is, normally held o en. The rise of the molten metal serves to c ose the valve in its seat 26by reason of the complementary-tapered surfaces in the valve and seat, and when so closed Ait forms a part of the Wall of the casting chamber. A signal or. indicator 27 can conveniently be'carried by this valve and will be `caused to rise orv -Iject outside the mold when the latter isl Referring to Figs. 4 and 5 which. shovr'the invention applied to a horizontallyl disposed mold, 28 indicates thedrag and 29 the cope hin ed together by means of the pivots 30. In'xis instance the two side gages 31 will be at the upper end of the casting mold and the valves 23 mayfconveniently be carried by the-said side gages. 32 indlcates one of the head gages and 33 indicates the other of the head gages. In .this instance the gage'33 has a cut-away portion 34 'through whlch Ythe metaly is admlttedwhen the valve 35' is opened. 36 indicates a assage leading to the melting pot. Asw' bei noticed-in this instance and Withthisl particular construc-4 tion there, will be a `slight amount of over castin equal to the size of the openlng' 34.

rom

'This, owever could easily be removed, .the ani had i l. casting chamber, and `which, when elosed,

forms l'a part of Ivthey wall of vthe casting chamber. f

' beveled head gages at 2. A stereotype casting mold comprising: a cope, a drag, side gages and head ga es at both ends forming an lnclosed casting c amberl of'substantia 1y the contour and dimensions of the plate to be cast, means for introducng mo ten metal intovthe said casting chamber, and means for allowing the air to escape from the'said casting chamber.

3. A stereotype casting mold comprising:

a cope, a drag, side gages, and head gages at both ends, forming an inclosed casting chamber of substantlally the contour and d1- inensions of the vplate to be cast, a valve for introducing molten metal -into the mold which, when closed, forms apart of the Wall of the casting chamber, and "a' valve adapted to be'automatically closed for allowing the Aair to escape from the said casting chamber,

andwhich, when closed; forms a part of the Wall of the castingchamber. 70

4,- A stereotype casting Inold comprising: a cope, a drag,side Gages, and oppositelyA both ends, forming-an inclosed castin' chamber of substantially ythe'eontour an .dimensions of the plate to '75 be cast, a Valvefor introducing molt-en metal into the mold, which, when closed,

forms a part ofv the Wall of the casting chamber, and al valve adapted to` be automatically closed for allowing the air to e's- 80 cape 'from the said casting chamber, and Which, when close-d, forms a part'of the Wall ofthe casting chamber.

5. The-combination of a metal melting furnace, .a melting pot, a stereotype casting mold, located exteriorly of the furnace and havlng ajcasting chamber, a conduit extend-- ing from the melting pot interiorlyof the furnace to the lower end of the mold, a wa'- ter back on the saidI mold, and means of communication in the said mold, connecting the' conduitleading fromjthe pot4 and the casting chamber and free from contact with the water back.

signed anew Yof'k cayrthis sul any of 95 -March 1907.

ARTHUR L. CASE. VVitn'e-'sses Axg V. BEEKEN, v

' Gno. MARSHALL. j 

